Windows 11 Hotpatch Resolves Bluetooth Device Visibility Issue

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Microsoft Issues Emergency Update for Windows 11 Enterprise

Microsoft has issued an emergency update to resolve a Bluetooth device visibility issue affecting Windows 11 Enterprise devices that have hotpatching enabled. The problem, which does not affect device functionality, prevents Bluetooth devices from appearing in the Windows Settings or Quick Settings menus, even when they are properly connected.

Issue and Resolution

The out-of-band (OOB) update, designated as KB5084897, was released on Monday and will be automatically installed on systems running Windows 11 versions 25H2 and 24H2 without requiring a system restart. This update includes all improvements and security patches from the March 2026 Windows hotpatch updates but will not be installed on Enterprise devices that receive standard Windows updates.

According to Microsoft, the issue is specific to hotpatch-enabled Enterprise editions of Windows and can also prevent users from adding Bluetooth devices because they do not appear in the connection list.

Related Development

In a related development, Microsoft released another Windows 11 Enterprise OOB hotpatch (KB5084597) on Friday to patch three high-severity vulnerabilities in the Windows Routing and Remote Access Service (RRAS) management tool. These vulnerabilities could allow attackers to execute malicious code remotely when connecting to a malicious server.

The RRAS vulnerabilities can be exploited by an attacker who is authenticated on the domain and tricks a domain-joined user into sending a request to a malicious server via the RRAS Snap-in. However, Microsoft notes that this issue only applies to a limited set of scenarios involving Enterprise client devices running hotpatch updates and being used for remote server management.

Hotpatch Updates

Hotpatch updates apply vulnerability fixes by performing in-memory patching of running processes and updating files on disk, ensuring that the fixes remain in place after rebooting the system. This approach enables Microsoft to rapidly respond to emerging threats and vulnerabilities without requiring users to restart their systems.